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Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey,
Remove constraint Publisher: Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey,
Subject
Petroleum
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Subject
Gas fields
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1. Oil and gas fields of Pennsylvania 1982 /
Harper, John A. Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey,.